cool, but the program can be cleaned up a bit to make it look better and so that it saves more battery by not making it say "Enter 1st number" in the same spot every second (or in understandable words, having to tell the robot to say "Enter 1st number", then tell it a millisecond later "Enter 1st number" and keep doing that)

EV3 Calculator

READ THIS FIRST: You can download the EV3 file at the bottom of the page. Try it out and give some comments! By the way remember to download and run the file named "Program" into your EV3 and not the file named "Computation" or it will NOT work. (the file named "Computation" is a Myblock).
This calculator originated from my first NXT calculator. This calculator can add, subtract, multiply, divide, square root and perform exponential functions (a^n) with numbers up to 1 decimal place.
How to use
Use the left and right buttons to increment the numbers by 1. Use the top and bottom buttons to increment the numbers by 0.1. Use the left and right buttons to change the operation.
Parts needed: JUST AN EV3!!!
Good luck and have fun! A new and better calculator will be out soon!